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Analysis of 9 Cases of Pancreaticobiliary Ductal Maljunction Without Common Bile Duct Dilatation Based on Intraoperative Cholangiography During Laparoscopic Cholecystectomy

OBJECTIVE OF THIS STUDY: In order to diagnose pancreaticobiliary maljunction (PBM), it is necessary to perform direct fluoroscopic examinations of the biliary tract system. However, for patients without symptoms, these examinations are performed only in selected cases. For some cases, it is not until intraoperative cholangiography (IOCG) during laparoscopic cholecystectomy (LC) is performed that a patient of PBM without common bile duct dilatation are appropriately diagnosed. We hypothesized that IOCG in LC has an important practical role for detecting presence of PBM. METHODS: 3502 patients who underwent IOCG during LC since 1997 in our institution were analyzed of the clinical features. RESULT: 9 patients had the radiological findings of PBM. They consisted of 4 males and 5 females with a mean age of 42.6 years (range: 16-66 years). Preoperatively, 6 were diagnosed as cholelithiasis, 2 were diagnosed as polypoid lesions of the gallbladder and 2 were diagnosed as adenomyomatosis of the gallbladder. Among them 4 patients were diagnosed as PBM preoperatively. And other 5 patients were diagnosed after IOCG with serum amylase measurement. And one patient was diagnosed as cancer of gallbladder by intraoperative pathological examination. As for the types of anomalous arrangement of pancreaticobiliary ducts, 5 patients had P-C Union type, and 4 patients had C-P Union type. 8 patients were performed LC only. Postoperatively, none of all 9 cases had biliary cancer including recurrence. CONCLUSION: These results suggest that IOCG in LC must have a practicable role for detecting presence of PBM.


Session: Poster

Program Number: P417

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